Attack On Titan: Hange Zoe

First of all, Hange has a huge fandom so you'll get flamed if you even remotely criticize her.

I dislike Hange, too. At first, I kinda liked her for her eccentricity but as time goes on, the "mad scientist" archetype gets boring when she became an annoying character with an unnecessary cruel side. For instance, her Titan experiments: I understand that she had to cut/stab them to experiment but instead of acknowledging it as a form of torture, she named them "Sawney" and "Beans". You know what, naming them doesn't make it cute. It would have grossed me out less if she HADN'T acted cute with them as if she'd so cared about them; it's hypocritical. She has a morbid fetish/obsession that is repulsive to me, such as, after Eren was beaten up by Levi in the courtroom, she eagerly asked him, "So how exactly does it hurt?" This isn't intellectual curiosity at all. When Eren's face was messed up after the transformation, she wanted to draw a picture of his face.

When she and Levi were torturing a guy in S3, she told him "I'm not asking you anything until after we get all your nails!" WTF? Looks like just wanted to get off on torture. Apparently he screamed louder when she did it than when Levi did it.

I also dislike Hange when she probed Eren when he was in jail as if he were up to something - it's dickish, considering that they all knew what Eren's going through. There are more than 1 occasion when Levi had to tell her to shut up because she's being a dick to someone.

And yet Hange's fans try to pass this scene as a "joke/humorous scene" - they must be trying to convince themselves that bullying is funny.

The scene made it crystal clear: Levi wouldn't jump in to defend Eren if she wasn't being an asshole.

Hange's fans:  "She's just asking out of curiosity".

Oh really? Sure, she's a curious person but that doesn't exclude her from being a cruel dick. She would have asked differently if it was pure curiosity. The manner AND the kind of questions she asked were more like, "Hey, you're up to something, aren't you?" attitude.

Even back when everybody just discovered Eren was a Titan, Erwin and Levi didn't show him that much distrust.

Hange's incompetent leadership post-Shiganshina:

Hange has a reputation of rubbing people the wrong way. Appointing her as the SC's Commander was Erwin's big mistake.
Also, I don't give a shit who appointed her. I judge leadership on an individual basis. Also, Erwin is someone who didn't think highly of his position; he thought "anyone can replace" him so of course he thought Hange could.
In a situation when 90% of the Survey Corps had died and only Levi and Hange were the remaining veterans, you can't exactly say you were the best choice when there was no competent person around. She hasn't demonstrated any intelligent battle tactics. In terms of intelligence, she pales in comparison to Armin.

How a person acts in a position of power speaks a lot about his/her personality.

• S1:  People hail her as a "genius scientist" but nothing she's done has impressed me. Her experiment with Titans didn't even have a "control group" - how the fuck do you even accept or reject the null hypothesis when there's no standard to compare to?! Also, she's been in the SC for 20 years and this is the first time she thought of cutting a Titan's nape open and experimenting with sunlight?!
• S3P1:  She isn't smart strategically, either. Her carelessness caused Pastor Nick's death. When Hange said "it's my fault that he died," Levi's response was a long silence - his expression told you, "of course".  You had an important witness but all you did was put him in a faraway place without guarding him. 
• Hange also said, after being in the Survey Corps for 20 years, that "I didn't I think that the MP would go to this extent [of killing Pastor Nick]". She was naive, stupid even. 
• She's terrible at "reading" people. For instance, at the end of S2 when Erwin said, "My father had a theory...", Levi immediately realized that that was the reason Erwin joined the SC while Hange was like, "huh?" She didn't have a clue!
• Another instance of her failing to "read" people:  mocks Eren when he's in jail and does it again 4 years later. 
• She insulted Shadis because of the real reason he had left the SC. Ok, how about herself? She's in the SC for Titan experiments. Hypocritical to judge someone else for his selfish motive while you're never even questioning yours!
• Season 4:  She struggles to understand the concept of "nations" - something that even 10-year-old kids understand the first time you explain to them. 
• It doesn't take a genius to AVOID making the rookie mistakes that Hange did: She allowed a foreign visitor who is drooling over their resources to discuss Paradis' internal affairs while keeping information from the public. 
• The only way Hange uses to resolve issue is by locking up people. Four Survey Corps beat Hange at logic in their small debate, lock them up. She makes enemies of her own soldiers. 
• She said that they'd need the Rumble but still locked Eren up (for 2 months, or longer if he didn't break out), failing to see that doing so would cause dissent among the populace. 
• Paradis is like a puppet in Kiyomi's and Zeke's hands - that wouldn't happen with any competent leader. 
• Hange herself admits in hindsight that her actions and inaction brought a civil war upon the land.
• "Erwin, why did you make me Commander?" Nah, I still don't have sympathy for you. You should've turned down the offer 4 years ago, not when things have spiraled to the point of no return. Not doing so demonstrates a lack of foresight and self-awareness.
• People say, "but she tried her best". I'm not sure if they want to use that argument because if *this* is her "best" then imagine what her "average" is like.
• "But she has a lot on her plate". No shit, such is the role of every SC Commander. 
• You know you fail hard when the people prefer a crazy hobo over you.
• Her behaviors in front of foreigners have been embarrassing. For instance, she made a fool of herself many chapters ago when she and Levi "welcomed" foreigners to the island for the first time and continued making a fool of herself whenever the foreigners introduced something new to them. Even Levi who grew up in the Underground felt embarrassed by how she "represented" Paradis...
• She thinks cars can eat carrot. Even Levi who isn't a scientist can tell that you can't feed food to a lump of iron. How can you expect a "leader" like this to "read" the enemies?!